CVE-2021-40824

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-40824
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-40824.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-40824
Aliases
Published
2021-09-13T19:15:19Z
Modified
2024-09-03T03:56:27.726689Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

A logic error in the room key sharing functionality of Element Android before 1.2.2 and matrix-android-sdk2 (aka Matrix SDK for Android) before 1.2.2 allows a malicious Matrix homeserver present in an encrypted room to steal room encryption keys (via crafted Matrix protocol messages) that were originally sent by affected Matrix clients participating in that room. This allows the attacker to decrypt end-to-end encrypted messages sent by affected clients.

References

Affected packages

Git / github.com/vector-im/element-web

Affected ranges

Type
GIT
Repo
https://github.com/vector-im/element-web
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

v0.*

v0.1.2
v0.10.0
v0.10.0-rc.2
v0.10.1
v0.10.2
v0.11.0
v0.11.0-rc.1
v0.11.0-rc.2
v0.11.1
v0.11.2
v0.11.2-rc.1
v0.11.2-rc.2
v0.11.3
v0.11.4
v0.12.0-rc.1
v0.12.1
v0.12.1-rc.1
v0.12.2
v0.12.3
v0.12.3-rc.1
v0.12.3-rc.2
v0.12.3-rc.3
v0.12.4
v0.12.4-rc.1
v0.12.5
v0.12.6
v0.12.7
v0.12.7-rc.1
v0.12.7-rc.2
v0.12.7-rc.3
v0.13.0
v0.13.0-rc.1
v0.13.0-rc.2
v0.13.0-rc.3
v0.13.1
v0.13.2
v0.13.3
v0.13.4
v0.13.5
v0.14.0
v0.14.0-rc.1
v0.14.0-rc.2
v0.14.0-rc.3
v0.14.0-rc.4
v0.14.0-rc.5
v0.14.0-rc.6
v0.14.1
v0.14.2
v0.14.2-rc.1
v0.14.2-rc.2
v0.14.2-rc.3
v0.14.3-rc.1
v0.15.0
v0.15.0-rc.1
v0.15.0-rc.2
v0.15.0-rc.3
v0.15.0-rc.4
v0.15.0-rc.5
v0.15.0-rc.6
v0.15.1
v0.15.2
v0.15.3
v0.15.4
v0.15.4-rc.1
v0.15.5
v0.15.5-rc.1
v0.15.6
v0.15.6-rc.1
v0.15.6-rc.2
v0.15.7
v0.15.7-rc.1
v0.15.7-rc.2
v0.16.0
v0.16.0-rc.1
v0.16.0-rc.2
v0.16.1
v0.16.1-rc.1
v0.16.2
v0.16.3
v0.16.3-rc.1
v0.16.3-rc.2
v0.16.4
v0.16.4-rc.1
v0.16.5
v0.16.5-rc.1
v0.16.6
v0.17.0
v0.17.0-rc.1
v0.17.1
v0.17.2
v0.17.3
v0.17.3-rc.1
v0.17.4
v0.17.5
v0.17.6
v0.17.6-rc.1
v0.17.6-rc.2
v0.17.7
v0.17.8
v0.17.8-rc.1
v0.17.9
v0.17.9-rc.1
v0.3.0
v0.4.0
v0.4.1
v0.5.0
v0.6.0
v0.6.1
v0.7.0
v0.7.1
v0.7.2
v0.7.3
v0.7.4
v0.7.4-r1
v0.7.5
v0.7.5-r1
v0.7.5-r2
v0.7.5-r3
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.9.10
v0.9.10-rc.1
v0.9.2
v0.9.3
v0.9.4
v0.9.5
v0.9.6
v0.9.6-rc.1
v0.9.7
v0.9.7-rc.1
v0.9.7-rc.2
v0.9.7-rc.3
v0.9.8
v0.9.8-rc.1
v0.9.8-rc.2
v0.9.8-rc.3
v0.9.9
v0.9.9-rc.1
v0.9.9-rc.2

v1.*

v1.0.0
v1.0.0-rc.1
v1.0.0-rc.2
v1.0.1
v1.0.2
v1.0.2-rc.1
v1.0.2-rc.2
v1.0.2-rc.3
v1.0.3
v1.0.4
v1.0.4-rc.1
v1.0.5
v1.0.6
v1.0.6-rc.1
v1.0.7
v1.0.8
v1.1.0
v1.1.0-rc.1
v1.1.1
v1.1.2
v1.2.0
v1.2.0-rc.1
v1.2.1
v1.2.2-rc.1
v1.2.2-rc.2